{"instruction": "You are an expert in event argument extraction. Please extract event arguments and their roles from the input that conform to the schema definition, which already includes event trigger words. If an argument does not exist, return NAN or an empty dictionary. Please respond in the format of a JSON string.", "schema": [{"event_type": "discover vulnerability", "arguments": ["time", "supported platform", "discoverer", "vulnerability", "vulnerable system", "vulnerable system version", "common vulnerabilities and exposures", "capabilities"]}], "input": "Both expressed doubts that attackers would be able to exploit the vulnerabilities that CTS - Labs had originally discovered ."}
{"discover vulnerability": [{"time": "NAN", "supported platform": "NAN", "discoverer": "CTS - Labs", "vulnerability": "the vulnerabilities", "vulnerable system": "NAN", "vulnerable system version": "NAN", "common vulnerabilities and exposures": "NAN", "capabilities": "NAN"}]}